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ICD-10 diagnosis code

I15.9 Secondary hypertension, unspecified

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I15.9 is the ICD-10 code for Secondary hypertension, unspecified. It is a four-character subcategory of I15 (Secondary hypertension), the most specific level in the WHO edition. It belongs to the block I10–I15 (Hypertensive diseases) in Chapter IX, Diseases of the circulatory system.

Code type
Subcategory (4 characters)
Chapter
IX · I00–I99
Classification
WHO ICD-10, 2019 version

I15.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

I15.9Sekundär hypertoni, ospecificerad

NorwayICD-10-NO

I15.9Uspesifisert sekundær hypertensjon

DenmarkICD-10-DK

DI159Sekundær hypertension UNS

FinlandICD-10-FI

I15.9Määrittämätön sekundaarinen korkea verenpaine

GermanyICD-10-GM

I15.9Sekundäre Hypertonie, nicht näher bezeichnet

FranceICD-10-FR

I15.9Hypertension secondaire, sans précision

NetherlandsICD-10-NL

I15.9secundaire hypertensie, niet-gespecificeerd

United StatesICD-10-CM

I15.9Secondary hypertension, unspecified

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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